

MCQOPTIONS
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1. |
Presence of H 2 S in raw water (to be chlorinated) results in the |
A. | reduced softening capacity of zeolite. |
B. | increased dosage of chlorine to provide a disinfecting residual in the water. |
C. | easy removal of its hardness. |
D. | none of these. |
Answer» C. easy removal of its hardness. | |